# db2_conn_errormsg

(PECL ibm_db2 >= 1.0.0)

db2_conn_errormsg — Returns the last connection error message and SQLCODE value

### Beschreibung

db2_conn_errormsg(?resource `$connection` = `null`): string

db2_conn_errormsg() returns an error message and SQLCODE value representing the reason the last database connection attempt failed. As db2_connect() returns `false` in the event of a failed connection attempt, do not pass any parameters to db2_conn_errormsg() to retrieve the associated error message and SQLCODE value.

If, however, the connection was successful but becomes invalid over time, you can pass the `connection` parameter to retrieve the associated error message and SQLCODE value for a specific connection.

### Parameter-Liste

`connection`
  A connection resource associated with a connection that initially succeeded, but which over time became invalid.

### Rückgabewerte

Returns a string containing the error message and SQLCODE value resulting from a failed connection attempt. If there is no error associated with the last connection attempt, db2_conn_errormsg() returns an empty string.

### Beispiele

Beispiel #1 Retrieving the error message returned by a failed connection attempt

The following example demonstrates how to return an error message and SQLCODE value after deliberately passing invalid parameters to db2_connect().

`<?php
$conn = db2_connect('badname', 'baduser', 'badpassword');
if (!$conn) {
print db2_conn_errormsg();
}
?>`

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

    [IBM][CLI Driver] SQL1013N  The database alias name
    or database name "BADNAME" could not be found.  SQLSTATE=42705
     SQLCODE=-1013

### Siehe auch

- db2_conn_error() - Returns a string containing the SQLSTATE returned by the last connection attempt
- db2_connect() - Returns a connection to a database
- db2_stmt_error() - Returns a string containing the SQLSTATE returned by an SQL statement
- db2_stmt_errormsg() - Returns a string containing the last SQL statement error message

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